| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.googlesource.gerrit.plugins.replication; |
| |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.inject.Inject; |
| |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| import org.eclipse.jgit.storage.file.FileBasedConfig; |
| import org.eclipse.jgit.util.FS; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| public class AutoReloadSecureCredentialsFactoryDecorator implements |
| CredentialsFactory { |
| private static final Logger log = LoggerFactory |
| .getLogger(AutoReloadSecureCredentialsFactoryDecorator.class); |
| |
| private final AtomicReference<SecureCredentialsFactory> secureCredentialsFactory; |
| private volatile long secureCredentialsFactoryLoadTs; |
| private final SitePaths site; |
| private ReplicationFileBasedConfig config; |
| |
| @Inject |
| public AutoReloadSecureCredentialsFactoryDecorator(SitePaths site, |
| ReplicationFileBasedConfig config) throws ConfigInvalidException, |
| IOException { |
| this.site = site; |
| this.config = config; |
| this.secureCredentialsFactory = |
| new AtomicReference<>(new SecureCredentialsFactory(site)); |
| this.secureCredentialsFactoryLoadTs = getSecureConfigLastEditTs(); |
| } |
| |
| private long getSecureConfigLastEditTs() { |
| FileBasedConfig cfg = new FileBasedConfig(site.secure_config, FS.DETECTED); |
| if (cfg.getFile().exists()) { |
| return cfg.getFile().lastModified(); |
| } else { |
| return 0L; |
| } |
| } |
| |
| @Override |
| public SecureCredentialsProvider create(String remoteName) { |
| if (needsReload()) { |
| try { |
| secureCredentialsFactory.compareAndSet(secureCredentialsFactory.get(), |
| new SecureCredentialsFactory(site)); |
| secureCredentialsFactoryLoadTs = getSecureConfigLastEditTs(); |
| log.info("secure.config reloaded as it was updated on the file system"); |
| } catch (Exception e) { |
| log.error("Unexpected error while trying to reload " |
| + "secure.config: keeping existing credentials", e); |
| } |
| } |
| |
| return secureCredentialsFactory.get().create(remoteName); |
| } |
| |
| |
| private boolean needsReload() { |
| return config.getConfig().getBoolean("gerrit", "autoReload", false) && |
| getSecureConfigLastEditTs() != secureCredentialsFactoryLoadTs; |
| } |
| } |